Product Type Portable Gas Convection Can Heaters Fuel Type Propane Heating Capacity Output 80 000 BtuH Heating Area 2 000 sq ft Minimum Cylinder Size 20 lb Ignition Type Matchless Piezo Ignition Power Source Manual Overall Height 18 1/2 in Overall Width 15 7/8 in Overall Depth 15 7/8 in Safety Features Inner Windshield Air Temperature Rise 144 Degrees F Features Auto Safety Shutoff Continuous Variable BTU Output For Use Indoors/Outdoors Indoor/Outdoor Fuel Consumption 3.71 lb/hr